KDE 4.2 is out officially. The ebuilds for Gentoo have been ready for a while. This is a truly fantastic release. If you've ever made an opinion about KDE in the past, I encourage you to give it another go.
My beta1 review back in December sums up most of my thoughts on the release. There isn't anything significantly changed since, just lots of polish and bug fixing. Everything has been stable and functional since I've been using it in the RC phase. This is a worthy opponent to KDE 3.5, GNOME, Windows and OS X.
Thanks again to the Gentoo KDE team. The ebuilds are in great shape!